Automatic trip and self-locking device.



T. L. JOHNSON. AUTOMATIC TRIP AND SELI:` LOCKING DEVICE.

APPLICATION FILED AUG. 19, 1912.

Patented Jan. 6, 1914.

COLUMBIA MNMRAPM CO.,w^sH|NaTON, D. c,

THEODORE LEONARD JOHNSON, OF EMMETSBURG, IOWA.

AUTOMATIC TRIP AND SELF-LOCKING DEVICE.

Specification of Letters Patent.

Application filed August 19, 1912. Serial No. 715,903.

To all 't0/0m it may concern Be it known that I, THEODORE LEONARD JOHNSON, a citizen of the United States, residing at Emmetsbui'g, in the county of Palo Alto, State of Iowa, have invented certain new and useful Improvements in Automatic Trips and Self-Locking Devices; and I. do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention has special reference to dumping mechanisms, and more particularly to an improved automatic trip and self locking device, adapted for holding a dumping chute or the like in a raised or horizontal position and for releasing the same, for dumping the material supported thereon.

An object of the invention is to provide a specifically novel holding and releasing device adapted for use in conjunction with various dumping machines or mechanisms, but especially adapted for instance in dumping coal into a locomotive tender or wagon box and can be disposed on either side of a binder as a bundle carrier and dump on binding machines.

With the above and other objects in view, the invention consists of certain other combinations and arrangements of parts as will be hereinafter more fully described, claimed and illustrated in the accompanying drawings, in which: 4

Figure 1 is a side elevation of my improved automatic trip and self locking device as applied to a coal dumping mechanism. Fig. 2 is a top plan view thereof. Fig. 3 is a detail view longitudinally of the device in a tripped or dumping position. Fig. 4 is an enlarged longitudinal sectional view taken on the line 4-4 of Fig. 2. Fig. 5 is a cross sectional view taken on the line 5-5 of Fig. 2. Fig. 6 4is a detail view of f the device as used in connection with a binder.

As illustrated, in Figs. 1 to 5 of the drawings my improved device is shown as applied to a coal dumping structure embody ing a frame formed of uprights 10 and a base 11 supporting a platform 12 having a dumping chute 13 hinged thereto. The purpose of this invention is to provide means whereby the chute may be held in a raised (i1-.horizontal position and instantaneously released for dumping the coal or other materials into a locomotive tender Or wagon as occasion may arise, although it is obvious the device may be employed in connection with various dumping machanisms. For this purpose a horizontal beam 14 has a downwardly pivotable free end section 15 hinged thereto as shown at 16 and arranged with an inwardly projecting` latch or locking bar 17 having a tapered free end. This tapered or downwardly and forwardly beveled free end is adapted-to coact with the upwardly and rearwardly beveled free end of a sliding catch or slide-bolt 18 having an oppositely extended guide pin 19 operating in opposite slots. 20 in a casing 21 secured upon the pin 14. A guide rod 22 extends into an aperture in the rear end of the spring catch or slide-bolt 18 and is secured to a bracket 23 at its rea-r end and a coiled spring 24 is mounted on said rod between the catch and bracket to normally force the catch over the locking bar and hold the latter in position to ret-ain the chute in its horizontal position. The pin 19 in the slots 20 also limits the movements of the catch or latch in either direction and in order to operate the catch, a yoke 25 is connected to the oppositely extended ends of the pin 19 and a lever 26 is connected to the yoke 25 through the medium of an operating rope or cable 27 passing under sheave wheels 27 and 27a.

In order to intermittently operate the chute, a suitably rotatable crank disk 28 may be connected to the free extremity of the chute or beyond the pivot thereof by a pitinan 29, thereby insuring of a positive dumping action. Furthermore, when the chute is dumped it may be held in such position by a. spring catch 30 engaging a projection 31 carried by the chute and the catch is held in operative position by a brace 32, having a guide 33 at its lower end straddling the catch 30, auxiliated by a coiled spring 34 connected to the free extremity of a rigid brace 35 and the adjacent portion or engaging end of the lower catch or lever 30. In order to release the lower catch a cable 36 is connected thereto, and a coiled spring 27 is connected to the locking bar for retaining the chute to its horizontal position.

In the use of the device with a binder as shown in Fig. 6 of the drawings the latch is shown as of similar construction except that the pin has a pair of connecting rods 38 connected thereto on each side of the latch,

Patented Jan. 6,1914.

and a foot lever 39 is mounted on the plat form 40-of the binder' adjacent 'to theoperators seat 4l and connected to the rods 38` by a lever 42 tofreleaserfthe latch', While a.y spring' 43 connects the platform and the le-- ver 42 to hold the rodsSSand lever 4Q/inI operative position.

Enom the :foregoing description in connection with the accompanying-drawings, :it will be seen tha-t I have provided an automatic trip and locking device which maybe employed in connection with various yforms of"'dumpin",f ;"mechanism 'and which' `Wil'lg greatly faoilitatesuoh operation by-permit ting the same tob'e manually or' automati lycarried' o'n in ain unusually quick and supporting` saidplatform, a locking` bar exe: tending* inwardly'from `the pivoted section,

a csiifrgcarrietlby the beam, a spring catch movable A'inthe casingand having opposligtelyk extended pins movable therein, means for operating' the ca-t'ch to permit the tilting section to dump and means to automatically return the tilting'l section to a :supporting position.

2; In a dumping' mechanism, a tilting platform, a beam having' a pivoted section supporting Said platform, a locking bar xextending' inwardly from the pivoted section,

-a casing carried by the beam, a spring catch. movable m the casing and having' opposltely vextended pms Amovable' therein,` means for operatingsthe catcl1--to"permit the tilting section to dump, means to` automatically re'- tui-'nthetiltingr sect-ion to a-supporting posi- `lion and means to hold-the tilting section in ya dumpingposi-tion: nftest-iniony whereof, I affix my signature, inpresence of two witnesses` E 'IHODOREy LEONRD JOHNSON. l/Vitnesses: 'i l "i .HERMAN F. JOHNSON,

Cona FITZKEE.

Copies ot this patent may be obtained for iv cents` each, by addressing the Commissioner of Patents,

f, Washingtonmtg l n 

